【摘要】 经434例输精管结扎术后的系统精液检查,以精液中残余活动精子和活精子消失时间的95%上限确定防止残余精子致孕的避孕时限为180天或20次排精。不同排精频率与残余活动精子,活精子、精子消失的时间都有密切联系;而在平均排精频率基本相同的年龄组中年龄与残余精子的上述三种消失的时间和排精次数均无密切联系。表明残余活动精子、活精子、精子的消失速率主要与排精频率有关。因此,可以采用增加排精频率的方法避孕20次,以缩短输精管结扎术后的避孕时间。更多还原

【Abstract】 By means of the systematic semen analyses in 434 post-vasectomized subjects,thecontraceptive time limit judged from 95% upper limit of disappearance time of residualmotile and viable sperm from ejaculate is 180 days or 20 ejaculates for Freventingthe pregnancy caused by residual sperm.There is close correlation between coitalfrequency and the disappearance periods of residual motile viable and existing sperm,but Correlation between the age and the disappearance of residual motile,viable andexisting sperm can be observed,if the ejaculating frequency was the same,To in-crease coital frequency with 20 contraceptions,therefore,may be used to shorten thecontraceptive time following vasectomy更多还原